Importance

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Abstract

Disclosed is a system for noise reduction including a tubular conduit and an exterior shell disposed about the tubular conduit. The tubular conduit can include a first section configured to be fluidly connected to an engine to allow exhaust gas to pass through the first section. The first section can include a plurality of openings. The tubular conduit can include a second section that is fluidly connected to the first section and is configured to accelerate the velocity of exhaust gas and decrease the pressure within the second tubular section. The second section can include a tube with a first tapered section that reduces in diameter, a second tubular section with a plurality of openings, and a third reverse-tapered section that expands in diameter. The tubular conduit can include a third section configured to be fluidly connected to the second section. The third section can include a plurality of openings.

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First Claim